510 Piece M3 M4 M5 Button Head Socket Cap Bolt And Nut Assortment Kit With Black Oxide Finish Made From Heavy Duty 10.9 Grade Alloy Steel Built Tough For Your Daily Grind

Premium 510 Piece M3 M4 M5 Hex Socket Fastener Kit
✔️ 10.9 grade steel bolts plus matching hex nuts for tight spaces

This comprehensive hardware pack organizes your workspace with precision. You get organized fasteners for machine assembly or equipment repair. Keep your drawers tidy while tackling interior updates or mechanical builds.

✅ Heavy duty 10.9 grade steel holds firm pressure during repairs
✅ Low profile button head sits flush against flat surfaces
✅ Clear storage box keeps your common metric sizes sorted
✅ Complete assortment packs 510 pieces for shop or garage use
📊 Component Chart:

Screw Type	Thread Length	Count
M3	8mm	30
M3	12mm	30
M3	16mm	30
M3	20mm	30
M3 Nut	M3	100
M4	8mm	25
M4	12mm	25
M4	16mm	20
M4	20mm	20
M4 Nut	M4	80
M5	8mm	15
M5	12mm	15
M5	16mm	15
M5	20mm	15
M5 Nut	M5	60

💡 What makes hardened steel socket set screws ideal for heavy machinery?
You score steady grip every time you crank a handy driver in cramped engine bays. These threaded pins hold fast under serious road shake and oil spray.
- Rock hard metal core resists stripping when you torque stubborn mounts tight
- Flat seating heads slide perfectly under flat washers without poking through paint
- Straight thread pitches lock securely against frame movement day after day

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